A little over 2,200 years ago, the Roman navy attacked the Greek port city of Syracuse
Both the lecture and the passage are discussing the "burning mirror", a kind of inventive weapon used by ancient Greeks in the battle with Romans' navy. The reading passage claims that, the ingenious weapon, which curved to focus the Sun's rays onto Roman ships, just a myth and mentions three reasons for this idea but professor disagrees with this idea.
First, the article mentions that the ancient Greeks did not have enough knowledge to make a huge sheet of copper with a detailed parabolic curvature; this specific argument is challenged by the lecture. the professor states that the result of the experiment shows that point, the ancient Greeks could use many small piece of copper sheet into burning mirror and arranged in parabolic instead of using single sheet.
Second, the author claims that the burning mirror would take a long time to set the ships on fire and burning mirror was an ineffective weapon because the ships did not stand for ten minutes in the same place. However, the professor argues that Romans were not built the ships by wood only they used different materials called pitch and it catches fire very quickly. In this way burning mirror can be a useful weapon.
Finally, the author posits that the burning mirror was a useless weapon for Greeks because they had effective weapon like flaming arrows. In contrast, the lecturer's stand is the fact is that, the Romans' soldiers were already familiar with flaming arrows but the burning mirror was new device with them and they thought it is just a mirror and with this method the Greeks could attack them easily.
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Grammar and spelling errors:
Line 2, column 410, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... parabolic instead of using single sheet Second the author claims that the burnin...
^^^
Line 5, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...od the Greeks could attack them easily
^^^^^^^^^^^^^^^
Transition Words or Phrases used:
but, finally, first, however, if, second, so, in contrast, kind of
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 9.0 7.30242825607 123% => OK
Relative clauses : 9.0 12.0772626932 75% => More relative clauses wanted.
Pronoun: 20.0 22.412803532 89% => OK
Preposition: 26.0 30.3222958057 86% => OK
Nominalization: 2.0 5.01324503311 40% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1310.0 1373.03311258 95% => OK
No of words: 271.0 270.72406181 100% => OK
Chars per words: 4.83394833948 5.08290768461 95% => OK
Fourth root words length: 4.05734859645 4.04702891845 100% => OK
Word Length SD: 2.15369850092 2.5805825403 83% => OK
Unique words: 140.0 145.348785872 96% => OK
Unique words percentage: 0.516605166052 0.540411800872 96% => OK
syllable_count: 398.7 419.366225166 95% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 3.25607064018 0% => OK
Article: 0.0 8.23620309051 0% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 0.0 2.5761589404 0% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 1.0 13.0662251656 8% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 271.0 21.2450331126 1276% => The Avg. Sentence Length is relatively long.
Sentence length SD: 0.0 49.2860985944 0% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 1310.0 110.228320801 1188% => Less chars_per_sentence wanted.
Words per sentence: 271.0 21.698381199 1249% => Less words per sentence wanted.
Discourse Markers: 66.0 7.06452816374 934% => Less transition words/phrases wanted.
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 0.0 4.33554083885 0% => More positive sentences wanted.
Sentences with negative sentiment : 1.0 4.45695364238 22% => More negative sentences wanted.
Sentences with neutral sentiment: 0.0 4.27373068433 0% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0818462399933 0.272083759551 30% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0818462399933 0.0996497079465 82% => OK
Sentence topic coherence SD: 0.0 0.0662205650399 0% => Sentences are similar to each other.
Paragraph topic coherence: 0.0538593422158 0.162205337803 33% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0277118574244 0.0443174109184 63% => OK
Essay readability:
automated_readability_index: 136.8 13.3589403974 1024% => Automated_readability_index is high.
flesch_reading_ease: -195.13 53.8541721854 -362% => Flesch_reading_ease is low.
smog_index: 0.0 5.55761589404 0% => Smog_index is low.
flesch_kincaid_grade: 107.8 11.0289183223 977% => Flesch kincaid grade is high.
coleman_liau_index: 12.21 12.2367328918 100% => OK
dale_chall_readability_score: 20.11 8.42419426049 239% => Dale chall readability score is high.
difficult_words: 52.0 63.6247240618 82% => More difficult words wanted.
linsear_write_formula: 55.0 10.7273730684 513% => Linsear_write_formula is high.
gunning_fog: 110.4 10.498013245 1052% => Gunning_fog is high.
text_standard: 137.0 11.2008830022 1223% => The average readability is very high. Good job!
What are above readability scores?
---------------------
Rates: 76.6666666667 out of 100
Scores by essay e-grader: 23.0 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.